Base for holding vernier calipers



Nov. 23, 1948. F. MALSOM BASE FOR HOLDING VERNIER CALIPERS 2Sheets-Sheet 1 Filed June 12, 1944 Nov. 23,1948. F, M SQM 2,454,327

BASE FOR HOLDING VERNIER CALIPERS Filed June 12, 1944 2 Sheets-Sheet 2'4 IN E ro/a Patented Nov. 23, 1948 UNITED STATES PATENT OFFICE BASE FORHOLDING VERNIER CALIPERS Frank Malsom, Maplewood, N. J.

Application June 12, 1944, Serial No. 539,861

2 Claims.

, 1 This invention relates to vernier calipers and more particularly totwo attachments, one a base and gib to hold a vernier caliper invertical position and the other an attachment to hold a Other objectsand advantages will be apparent from the following detailed descriptionwhen taken in conjunction with the accompanying drawing, wherein Fig. lis a vertical sectional view of a vernier caliper mounted in theproposed base and. gib and showing the attachment holding a scriber onthe movable jaw of the vernier;

Fig. 2 is a top plan View of the base and gib; and

Fig. 3 is a vertical sectional view taken along the line 3-3 of Fig. 1.

Fig. 4 is a vertical sectional View of the gib removed from the base andshowing the flange which fits over the vernier caliper and holds itupright, secured by means of an Allen screw fitted into the blindcountersink shown in the drawing;

Fig. 5 is a vertical sectional view of the gib;

Fig. 6 is a vertical sectional View of the lock element for holding theattachment and scriber onto the movable jaw of the vernier caliper;

Fig. 7 is an end elevational view of the'lock element.

Referring now to the drawing, numeral 10 designates a base substantiallyrectangular in shape except that the two front corners are cut to form atriangle. The base may be made of any suitable material and in anydesired manner, size or form. However, in the present embodiment of theinvention the base is formed of tool steel machined to form a base witha platform transversally, approximately center. The bottom is undercut Hto allow the base to set solidly on a smooth surface. A slot I2 is cutthe length of the platform at approximately center and concaved at thefront end.

In the present embodiment of the invention an insert l3 cut with arelief and fitting the slot perfectly is placed at the back of the slotand secured by a pin l4. However, this shape could be machined in theslot, but, the insert provides for a perfect degree angle at the bottomof the slot I5.

A gib l6, flanged at the top-center rests in the slot and is convexed asshown in Fig. 4 to match the concave at the front end of the slot. Ablind countersink in this gib l6, cut at forty-five degrees andoff-center along the line 2-2 receives the Allen screw l8. When avernier caliper i9 is placed in the base the end of flange 20 on the giboverlaps the stationary jaw of the vernier; the Allen screw is tightenedwith a key and the gib thus secured forces the vernier into position atpoints 2!, 22, 23, 24, and 25 at a right angle with the base and holdsit against the insert 3 at position 26 and secured at position 21 by thescrew.

The invention uses an attachment 28 such as is employed to hold thescriber in a height vernier and improves it by the addition of a pivotalelement 29 as shown in Fig. 6. This pivotal element locks theattachment, which holds the scriber, at the end of the movable jaw ofthe vernier caliper and squares it into position by the pivotal actionof the pin 30 in the hole 3| which is fractionally larger than the pin.

The pivotal element squares against the point of the movable jaw atposition 32 and is held in position against the concave top of the jawby the convexed end of the pivotal element at 33. The screw 34 holds theattachment with the pivotal element and the scriber 35 securely inposition for measuring.

The embodiment of the invention herein disclosed as illustrative onlyand may be widely modified and departed from in many ways withoutdeparting from the spirit and scope of the invention within the limitsof the appended claims.

What is claimed is:

1. A base for holding a vernier caliper, said base comprising a bodyhaving a slot therein to receive the stationary jaw of the verniercaliper, a gib comprising a plate located in said slot and a flangeadapted to extend over said jaw, said plate having a blind countersinkon the side furthest from said jaw, and a screw mounted in said body andadapted to enter said countersink to force said plate against the jaw,wherebi the vernier caliper is held upright in the base.

2. A base for holding a vernier caliper, said base comprising a bodyhaving front and rear ends and a slot extending from said rear end toclose to said front end to receive the stationary jaw of the Verniercaliper, a gib comprising a plate located in said slot intermediate saidends and a flange adapted to extend over said jaw, said plate having ablind countersink on the side furthest from said jaw, a screw mounted insaid body and adapted to enter said countersink to force said plateagainst the jaw, an insert located in saidsldt at said rear end andadapted to engage said jaw, and a pin carried by' said body and holdingsaid insert, said plate, said flange and said insert holding the Verniercaliper upright in the base.

FRANK MALSO M.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,650,704 Gaa e Nov. 29, 19272,367,743 Thorsberg Jan. 23, 1945 FOREIGN PATENTS Number Country I Date729,611 French July 28, 1932 741,828 French Feb. 21, 1933

